diff --git a/rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/rest/TbRestApiCallNode.java b/rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/rest/TbRestApiCallNode.java
index 81de1ded43..0e65905dfe 100644
--- a/rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/rest/TbRestApiCallNode.java
+++ b/rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/rest/TbRestApiCallNode.java
@@ -35,7 +35,7 @@ import java.util.List;
         type = ComponentType.EXTERNAL,
         name = "rest api call",
         configClazz = TbRestApiCallNodeConfiguration.class,
-        version = 2,
+        version = 3,
         nodeDescription = "Invoke REST API calls to external REST server",
         nodeDetails = "Will invoke REST API call <code>GET | POST | PUT | DELETE</code> to external REST server. " +
                 "Message payload added into Request body. Configured attributes can be added into Headers from Message Metadata." +
@@ -52,6 +52,7 @@ import java.util.List;
 public class TbRestApiCallNode extends TbAbstractExternalNode {
 
     static final String PARSE_TO_PLAIN_TEXT = "parseToPlainText";
+    static final String MAX_IN_MEMORY_BUFFER_SIZE_IN_KB = "maxInMemoryBufferSizeInKb";
     static final String TRIM_DOUBLE_QUOTES = "trimDoubleQuotes";
     protected TbHttpClient httpClient;
 
@@ -92,6 +93,11 @@ public class TbRestApiCallNode extends TbAbstractExternalNode {
                     hasChanges = true;
                     ((ObjectNode) oldConfiguration).remove(List.of("useRedisQueueForMsgPersistence", "trimQueue", "maxQueueSize"));
                 }
+            case 2:
+                if (!oldConfiguration.has(MAX_IN_MEMORY_BUFFER_SIZE_IN_KB)) {
+                    hasChanges = true;
+                    ((ObjectNode) oldConfiguration).put(MAX_IN_MEMORY_BUFFER_SIZE_IN_KB, 256);
+                }
                 break;
             default:
                 break;
diff --git a/rule-engine/rule-engine-components/src/test/java/org/thingsboard/rule/engine/rest/TbRestApiCallNodeTest.java b/rule-engine/rule-engine-components/src/test/java/org/thingsboard/rule/engine/rest/TbRestApiCallNodeTest.java
index 132261420c..e7d541d587 100644
--- a/rule-engine/rule-engine-components/src/test/java/org/thingsboard/rule/engine/rest/TbRestApiCallNodeTest.java
+++ b/rule-engine/rule-engine-components/src/test/java/org/thingsboard/rule/engine/rest/TbRestApiCallNodeTest.java
@@ -233,7 +233,8 @@ public class TbRestApiCallNodeTest extends AbstractRuleNodeUpgradeTest {
                                 "\"enableProxy\": false,\"useSystemProxyProperties\": false,\"proxyScheme\": null,\"proxyHost\": null," +
                                 "\"proxyPort\": 0,\"proxyUser\": null,\"proxyPassword\": null,\"readTimeoutMs\": 0," +
                                 "\"maxParallelRequestsCount\": 0,\"headers\": {\"Content-Type\": \"application/json\"}," +
-                                "\"credentials\": {\"type\": \"anonymous\"}}"),
+                                "\"credentials\": {\"type\": \"anonymous\"}," +
+                                "\"maxInMemoryBufferSizeInKb\": 256}"),
                 // config for version 2 with upgrade from version 1
                 Arguments.of(1,
                         "{\"restEndpointUrlPattern\":\"http://localhost/api\",\"requestMethod\": \"POST\"," +
@@ -249,7 +250,24 @@ public class TbRestApiCallNodeTest extends AbstractRuleNodeUpgradeTest {
                                 "\"enableProxy\": false,\"useSystemProxyProperties\": false,\"proxyScheme\": null,\"proxyHost\": null," +
                                 "\"proxyPort\": 0,\"proxyUser\": null,\"proxyPassword\": null,\"readTimeoutMs\": 0," +
                                 "\"maxParallelRequestsCount\": 0,\"headers\": {\"Content-Type\": \"application/json\"}," +
-                                "\"credentials\": {\"type\": \"anonymous\"}}")
+                                "\"credentials\": {\"type\": \"anonymous\"}," +
+                                "\"maxInMemoryBufferSizeInKb\": 256}"),
+                // config for version 3 with upgrade from version 2
+                Arguments.of(2,
+                        "{\"restEndpointUrlPattern\":\"http://localhost/api\",\"requestMethod\": \"POST\"," +
+                                "\"useSimpleClientHttpFactory\": false,\"parseToPlainText\": false,\"ignoreRequestBody\": false," +
+                                "\"enableProxy\": false,\"useSystemProxyProperties\": false,\"proxyScheme\": null,\"proxyHost\": null," +
+                                "\"proxyPort\": 0,\"proxyUser\": null,\"proxyPassword\": null,\"readTimeoutMs\": 0," +
+                                "\"maxParallelRequestsCount\": 0,\"headers\": {\"Content-Type\": \"application/json\"}," +
+                                "\"credentials\": {\"type\": \"anonymous\"}}",
+                        true,
+                        "{\"restEndpointUrlPattern\":\"http://localhost/api\",\"requestMethod\": \"POST\"," +
+                                "\"useSimpleClientHttpFactory\": false,\"parseToPlainText\": false,\"ignoreRequestBody\": false," +
+                                "\"enableProxy\": false,\"useSystemProxyProperties\": false,\"proxyScheme\": null,\"proxyHost\": null," +
+                                "\"proxyPort\": 0,\"proxyUser\": null,\"proxyPassword\": null,\"readTimeoutMs\": 0," +
+                                "\"maxParallelRequestsCount\": 0,\"headers\": {\"Content-Type\": \"application/json\"}," +
+                                "\"credentials\": {\"type\": \"anonymous\"}," +
+                                "\"maxInMemoryBufferSizeInKb\": 256}")
         );
     }